U.K. forecasts ‘biggest’ El Nino will smash records, spark hottest year
The U.K. Met Office forecasts that the upcoming El Nino event will be the most intense in over a century, potentially causing 2027 to become the hottest year on record. Scientists warn that this natural weather pattern, exacerbated by climate change, will lead to unprecedented global temperature anomalies.
Why it matters
Extreme weather patterns threaten global food security, infrastructure, and public health, necessitating urgent climate adaptation strategies.
This year's El Nino weather pattern will be the biggest in over a century and could make 2027 the hottest year globally, Britain's national weather agency said on Friday (August 21, 2026).
An El Nino weather event happens when warming sea surface temperatures in the tropical eastern Pacific trigger worldwide changes in winds, atmospheric pressure and rainfall, as well as higher global temperatures overall.
Adam Scaife, head of long-range forecasting at the weather agency, told the BBC : "We are expecting the biggest El Nino for over a century, peaking at something over three degrees - that is unheard of in modern climate records."
This means Pacific water would heat up more than 3 degrees Celsius above the norm in the coming months.
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